[tex]\bf \stackrel{\textit{granny's}}{\cfrac{1}{3}}+\stackrel{\textit{friend's}}{\cfrac{2}{5}}-\stackrel{\textit{sister}}{\cfrac{1}{2}}\implies \stackrel{\textit{using an LCD of 30}}{\cfrac{(10)3+(6)2-(15)1}{30}}\implies \cfrac{30+12-15}{30} \\\\\\ \cfrac{27}{30}\implies \cfrac{9}{10}[/tex]
Answer:
7/30 pounds of candy
Step-by-step explanation:
1/3 + 2/5 = 11/15
11/15 - 1/2= 7/30 pound of candy